A levy on nitrogen oxides (NOx) emissions with revenues earmarked to fund the uptake of NOx abatement measures is the most promising tool to reduce these ship emissions by up to 70%, a new study by environmental consultancy IVL and CE Delft reveals. The study, commissioned by Transport & Environment (T&E), identifies for the first time the policy options available at the EU level to regulate ship NOx emissions in the EU seas and compares them with the measures to be taken under the International Maritime Organisation (IMO). In addition to a NOx levy with a fund, the study identified two other EU-level policy tools: mandatory slow steaming of ships (with a levy and fund as an alternative compliance option) and a stand-alone levy on emitted NOx.
Increasing the use of natural gas in cars and trucks would be largely ineffective in reducing greenhouse gas (GHG) emissions and air pollution, a new independent study finds. There are no GHG savings in shifting from diesel cars and trucks to compressed or liquefied natural gas (LNG) cars and trucks, while petrol-hybrid, electric and hydrogen cars deliver much greater climate benefits, the study for sustainable transport group Transport & Environment says.